A photo posted by Tina Knowles (@mstinalawson) on May 18, 2016 at 8:39pm PDT

"Houston Concert proud dad!!!!" Tina captioned on Instagram. Beyonce and her father have appeared publicly estranged since she fired him in 2011. Many speculate that her song "Daddy Lessons" on Lemonade is about this strained relationship.

Mathew says he isn't sure that the song is about him. "Well, I can only speculate like everyone else. And I think the genius in this body of work that Beyoncé has done is she has us all speculating and she has us all letting our minds expand on her words and the expansion of them," he tells Watch Loud. "When I hear this song [“Daddy’s Lessons”] I’m sure that some of that, hopefully, I inspired her. But am I sure, no."

As for the current state of his relationship with his daugther, Mathew chooses not to definitely say anything. "I choose to let the press say whatever they want and let people say whatever they want. It’s nobody’s business how much I see my daughter or my grandkids, that’s something personal that I care not to share."

The Knowles family was all smiles during the concert. Mathew also hung out with Solange and her son Juelz.